85649153 has 2 divisors, whose sum is σ = 85649154. Its totient is φ = 85649152.

The previous prime is 85649147. The next prime is 85649167. The reversal of 85649153 is 35194658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83302129 + 2347024 = 9127^2 + 1532^2 .

It is a cyclic number.

It is not a de Polignac number, because 85649153 - 2⁸ = 85648897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85649153.

It is not a weakly prime, because it can be changed into another prime (85649353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42824576 + 42824577.

It is an arithmetic number, because the mean of its divisors is an integer number (42824577).

Almost surely, 2^85649153 is an apocalyptic number.

It is an amenable number.

85649153 is a deficient number, since it is larger than the sum of its proper divisors (1).

85649153 is an equidigital number, since it uses as much as digits as its factorization.

85649153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 85649153 is about 9254.6827606353. The cubic root of 85649153 is about 440.7994299117.

The spelling of 85649153 in words is "eighty-five million, six hundred forty-nine thousand, one hundred fifty-three".